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Message-ID: <20200618141426.16884-1-nixiaoming@huawei.com>
Date: Thu, 18 Jun 2020 22:14:26 +0800
From: Xiaoming Ni <nixiaoming@...wei.com>
To: <acme@...nel.org>, <alexander.shishkin@...ux.intel.com>,
<arnd@...db.de>, <borntraeger@...ibm.com>,
<catalin.marinas@....com>, <christian@...uner.io>,
<cyphar@...har.com>, <dhowells@...hat.com>,
<ebiederm@...ssion.com>, <fenghua.yu@...el.com>,
<geert@...ux-m68k.org>, <gor@...ux.ibm.com>,
<heiko.carstens@...ibm.com>, <ink@...assic.park.msu.ru>,
<jolsa@...hat.com>, <linux@...linux.org.uk>, <lkp@...el.com>,
<mark.rutland@....com>, <mattst88@...il.com>, <minchan@...nel.org>,
<mingo@...hat.com>, <monstr@...str.eu>, <namhyung@...nel.org>,
<nixiaoming@...wei.com>, <peterz@...radead.org>, <rth@...ddle.net>,
<sargun@...gun.me>, <sfr@...b.auug.org.au>, <tony.luck@...el.com>,
<will@...nel.org>, <akpm@...ux-foundation.org>
CC: <alex.huangjianhui@...wei.com>, <zhongjubin@...wei.com>,
<linux-kernel@...r.kernel.org>, <linux-s390@...r.kernel.org>,
<clang-built-linux@...glegroups.com>, <kbuild-all@...ts.01.org>,
<linux-mm@...ck.org>
Subject: [PATCH v2] s390: fix build error for sys_call_table_emu
Build error on s390:
arch/s390/kernel/entry.o: in function `sys_call_table_emu':
>> (.rodata+0x1288): undefined reference to `__s390_'
In commit ("All arch: remove system call sys_sysctl")
148 common fdatasync sys_fdatasync sys_fdatasync
-149 common _sysctl sys_sysctl compat_sys_sysctl
+149 common _sysctl sys_ni_syscall
150 common mlock sys_mlock sys_mlock
After the patch is integrated, there is a format error in the generated
arch/s390/include/generated/asm/syscall_table.h:
SYSCALL(sys_fdatasync, sys_fdatasync)
SYSCALL(sys_ni_syscall,) /* cause build error */
SYSCALL(sys_mlock,sys_mlock)
According to the guidance of Heiko Carstens, use "-" to fill the empty system call
Similarly, modify tools/perf/arch/s390/entry/syscalls/syscall.tbl.
Fixes: ("All arch: remove system call sys_sysctl")
Fixes: https://lore.kernel.org/linuxppc-dev/20200616030734.87257-1-nixiaoming@huawei.com/
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Xiaoming Ni <nixiaoming@...wei.com>
changes in v2:
use "-" to fill the empty system call
v1: https://lore.kernel.org/lkml/20200618110320.104013-1-nixiaoming@huawei.com/
---
arch/s390/kernel/syscalls/syscall.tbl | 2 +-
tools/perf/arch/s390/entry/syscalls/syscall.tbl | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl
index f17aaf6fe5de..04c34c2ed916 100644
--- a/arch/s390/kernel/syscalls/syscall.tbl
+++ b/arch/s390/kernel/syscalls/syscall.tbl
@@ -138,7 +138,7 @@
146 common writev sys_writev compat_sys_writev
147 common getsid sys_getsid sys_getsid
148 common fdatasync sys_fdatasync sys_fdatasync
-149 common _sysctl sys_ni_syscall
+149 common _sysctl - -
150 common mlock sys_mlock sys_mlock
151 common munlock sys_munlock sys_munlock
152 common mlockall sys_mlockall sys_mlockall
diff --git a/tools/perf/arch/s390/entry/syscalls/syscall.tbl b/tools/perf/arch/s390/entry/syscalls/syscall.tbl
index 0193f9b98753..29144b79a49d 100644
--- a/tools/perf/arch/s390/entry/syscalls/syscall.tbl
+++ b/tools/perf/arch/s390/entry/syscalls/syscall.tbl
@@ -138,7 +138,7 @@
146 common writev sys_writev compat_sys_writev
147 common getsid sys_getsid sys_getsid
148 common fdatasync sys_fdatasync sys_fdatasync
-149 common _sysctl sys_ni_syscall
+149 common _sysctl - -
150 common mlock sys_mlock compat_sys_mlock
151 common munlock sys_munlock compat_sys_munlock
152 common mlockall sys_mlockall sys_mlockall
--
2.27.0
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